Journal
CHEMPHYSCHEM
Volume 18, Issue 22, Pages 3142-3147Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cphc.201700716
Keywords
adsorption; carbon dioxide; electrocatalysis; metal-organic frameworks; ZIF-8
Funding
- National Key Projects for Fundamental Research and Development of China [2016YFB0600901]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB17030300]
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Metal-organic frameworks (MOFs) are regarded as promising materials for CO2 adsorption, which is an important step in CO2 electrochemical reduction. In this work, zeolitic imidazolate framework (ZIF-8) nanomaterials were synthesized with various zinc sources and used as electrocatalysts for CO2 reduction to CO. Among them, ZIF-8, prepared using ZnSO4, delivers the best catalytic activity towards CO2 electroreduction, with 65% CO yield. The main catalytic center can be attributed to the discrete Zn nodes in ZIF-8. Electrolytes are important in increasing the CO selectivity, and NaCl is the best suitable electrolyte due to facile anion exchange.
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